Microbial Resources and Ecology - Microbial Degradation of  Pesticides

Ye, Xiaolan; Dong, Fei; Lei, Xiangyang

doi:10.24294/nrcr.v1i1.242

Cited by 35 publications

(17 citation statements)

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“…It was observed that fungicides did not contribute to significant changes in the activity of alkaline phosphatase and β-glucosidase. A reduction of enzyme activity could be the effect of destroying microorganisms living in soil by an excessive amount of fungicides (Ye et al 2018). Inhibition of soil enzyme activity was also proved by Onyszko et al (2017).…”

Section: Resultsmentioning

confidence: 95%

“…Long-term and intensive application of these agents can lead to extensive treated of soil ecosystems (Pose-Juan et al 2017). As Ye et al (2018) reports, even 80-90% of applied pesticides penetrate into the natural environment, and only a small percent (1-2%) operate against the target organisms, while the remaining share (10-20%) is situated on the plant surface. This can have a harmful effect on the quantity and quality of microorganisms inhabiting the soil, as well as on their physiological processes, which is related to unfavourable changes in soil productivity and fertility (Pose-Juan et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Changes in microbiological properties of soil during fungicide degradation

Baćmaga

Kucharski

Kaczyński

2018

Soil Science Annual

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Laboratory tests were performed on sandy loamy soil to establish the relations between bacterial diversity, soil enzyme activity and degradation of Amistar 250 SC, Falcon 460 EC and Gwarant 500 SC fungicides. Apart from carrying out microbiological and biochemical analyses, the residues of active substances from the tested fungicides were determined. Structural diversity of was determined based on the next-generation sequencing (NGS) method, and fungicide residues the liquid chromatography tandem-mass spectrometry (LC-MS/MS). It was found that changes in bacterial diversity occurred in the soil subject to fungicide treatment, particularly at the family and genus level. Proteobacteria, Firmicutes and Actinobacteria were prevailing in all soil samples. Bacillus occurred both in the control soil and in the soil treated with fungicides, while Pseudonocardia occurred only in the fungicide-treated soil. Of all the fungicides tested, the biggest changes in bacterial diversity were caused by Gwarant 500 SC. The preparations tested not only affected the composition of soil microbiota, but also contributed to changes in the biochemical properties of soil by inhibiting the activity of almost all tested enzymes, with the exception of alkaline phosphatase and β-glucosidase. Chlorothalinil was the fastest degraded in the soil and spiroxamine at the slowest.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Changes in microbiological properties of soil during fungicide degradation

Baćmaga

Kucharski

Kaczyński

2018

Soil Science Annual

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“…It is well known that not only chemical process but also microbiological processes could degrade pesticides. Indeed, there are studies showing that pesticides are degraded by some microorganisms within a few days during storage (Andreu & Pico, ; Ye et al, ). Likewise, Heck, Santos, Junior, Costabeber, and Emanuelli () reported that HCB, lindane, pp 1 ‐DDD, and op 1 ‐DDD residues were higher in UHT milk samples than in both raw and pasteurized milk samples.…”

Section: Resultsmentioning

confidence: 99%

Section: Ddt Metabolitesmentioning

confidence: 99%

Determination of organochlorine pesticide residues in pasteurized and sterilized milk using QuEChERS sample preparation followed by gas chromatography–mass spectrometry

Özdemir

Öz

et al. 2019

J Food Process Preserv

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Although pesticides are widely used for preventing foods from pests, there are some legal regulations about pesticide residues in foods because of their negative impact on human health. Organochlorine pesticide residues in pasteurized and UHT milk samples were determined by QuEChERS sample preparation method followed by GC/MS. Despite they are prohibited, varying levels of heptachlor (up to 65.42 μg/kg), heptachlor epoxide (up to 2.62 μg/kg), aldrin (up to 3.86 μg/kg), 4,41‐DDE (up to 4.28 μg/kg), dieldrin (up to 4.85 μg/kg), 2,41‐DDT (up to 7.32 μg/kg), and β‐endosulfan (up to 4.74 μg/kg) were detected. The incidence of pesticide residues in the samples was between 2.22% and 97.78%. It was determined that total pesticide residue amounts ranged between 27.04 and 74.69 μg/kg, and the majority of the total pesticide residue amounts belonged to heptachlor. In addition, it was determined that total pesticide residue amounts in UHT milk samples were higher than pasteurized milk samples. Practical applicationsDue to the fact that pesticides are widely used in order to eliminate pests, consumption of pesticides increases. This situation has led to the emergence of many important problems in terms of environmental pollution and human health such as cancer, birth abnormalities, and nervous system diseases. Therefore, residual analysis, monitoring, and risk assessment of food are gaining importance every day. Although the use of some pesticides is prohibited, the present study shows that these pesticides could be detected in both pasteurized and UHT milk samples. Therefore, more attention should be paid to the control of pesticides.

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“…The use of fungicides is a common practice in plant protection against fungal pathogens. As reported by Muñoz-Leoz et al (2011) and Ye et al (2018), only a few of these preparations fulfill their task, whereas the others penetrate to the environment and may pose a threat to the organisms other than fungi.…”

Section: Introductionmentioning

confidence: 98%

Biostimulation as a process aiding tebuconazole degradation in soil

Baćmaga

Kucharski

2019

J Soils Sediments

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Purpose The purpose of this study was to compare effects of two biostimulating substances (compost and bird droppings) on the proliferation of microorganisms, enzymatic activity, and resistance of spring barley in soil exposed to tebuconazole fungicide. Both biostimulating substances were also assessed for their efficacy in tebuconazole degradation in soil. Materials and methods A pot vegetation experiment was performed with soil belonging to the Eutric Cambisols to test the effect of tebuconazole on the biological activity of soil. Its adverse effect on the biological properties of soil was minimized through the use of biostimulating substances (compost and bird droppings), the effect of which was expressed with the IF C/BD index. The RCh index was used to determine the effect of tebuconazole on the proliferation of soil microorganisms and enzymes, the BA 21 index was used to express soil fertility based on the activity of soil enzymes, whereas the RS index-to express the resistance of spring barley to the administered doses of tebuconazole. Finally, analyses were conducted to determine the efficacy of soil amendment with biostimulating substances in tebuconazole degradation. Results and discussion Study results demonstrate that tebuconazole caused significant changes in the proliferation of the tested groups of microorganisms, in the activity of soil enzymes, and in spring barley yield. It was especially noticeable in pots in which the soil was exposed to its highest dose, i.e., 2.499 mg kg −1. Soil supplementation with bird droppings had a positive effect on the development of soil microorganisms and on the enzymatic activity in the soil. In turn, compost addition to soil exerted various effects on the biological properties of soil. Both biostimulating substances failed to improve spring barley yield. Tebuconazole degradation was more intense in the soil fertilized with bird droppings than with compost. Conclusions Results of this study suggest that tebuconazole can affect the stability and health status of soil ecosystems by modifying their biological properties. The high sensitivity of soil microorganisms and enzymes to stress conditions makes them reliable environmental bioindicators. The strive for eliminating the adverse impact of fungicides on soil microbiome through the use of appropriate remediation methods, like, e.g., biostimulation, is of greater concern from the ecological perspective.

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Microbial Resources and Ecology - Microbial Degradation of Pesticides

Cited by 35 publications

References 0 publications

Changes in microbiological properties of soil during fungicide degradation

Changes in microbiological properties of soil during fungicide degradation

Determination of organochlorine pesticide residues in pasteurized and sterilized milk using QuEChERS sample preparation followed by gas chromatography–mass spectrometry

Biostimulation as a process aiding tebuconazole degradation in soil

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